ControlLogix 5000 Word Shift Register

JaxGTO · May 7, 2015

Yea I just tested it in emulator. Looks like I spoke to soon. The BSx only does 1 bit shift per execution. So I changed it to a FAL. Using a non array tag for the control register its FAL R_FAL1 20 0 ALL D[R_FAL1.POS] D[R_FAL1.POS+1]

cbuysse · May 7, 2015

Have you emulated that yet? What you're going to get is the value that was originally in D[0] will be copied to all of the other elements in the array

JaxGTO · May 7, 2015

Yes I did run it in emulator. It moves 19->20 18-19...2->3 1->2 0->1

danielwilliams · Nov 13, 2019

Round Robin

After messing around with many configurations i came up with a simple round robin type logic for multi pump sequencing. Lead - Lag - Lag2 - Standby

XIC Lead_Runnning ONS ons MOV Pump_Seq[0] Pump_Seq[4] COP Pump_Seq[1] Pump_Seq[0] 4

daba · Nov 20, 2019

JaxGTO said:
Yes I did run it in emulator. It moves 19->20 18-19...2->3 1->2 0->1

I think you will find that you need to do this to get it to work correctly in an actual controller.

I would not trust an emulator to do anything the same as a controller, there are some hidden "treasures".

ControlLogix 5000 Word Shift Register

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